Connect using WiFi without the need for wiring. In addition, you will be able to access video feed from anywhere as long as you are connected to the Internet. – Ring chime included. Plug in chime adapter to hear ringing when someone presses doorbell in case away from phone. – PIR motion sensor detects nearby approaching objects and sends an alert through the App. – Powered by 5200mAh rechargeable battery cells which can last for more than 3 months of continuous use.